IL6 and hydrops fetalis: Interestingly, in comparison with the control, the quantitative real-time PCR (qPCR) results showed that the expression of miR-181b in the HF group was downregulated by about 56% (P < 0.001; Figure 3(b)), while the expression of TNF-α, IL-1β, and IL-6 was significantly increased (P < 0.05; Figure 3(j)).